Using the Laser Engineered Net Shaping (LENS{trademark}) process to produce complex components from a CAD solid model

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The Laser Engineered Net Shaping (LENS{trademark}) process, currently under development, has demonstrated the capability to produce near-net shape, fully dense metallic parts with reasonably complex geometrical features directly from a Computer-Aided Design (CAD) solid model. Using a highly localized laser beam, metal powders are used to produce very fine grain high strength structures. Results to date show that excellent mechanical properties can be achieved in alloys such as 316 stainless steel and Inconel 625. Significant increases in yield strength have been achieved with no loss in ductility. The current approach lends itself to produce components with a dimensional accuracy of ... continued below

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11 p.

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Smugeresky, J.E.; Keicher, D.M.; Romero, J.A.; Griffith, M.L. & Harwell, L.D. August 1, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The Laser Engineered Net Shaping (LENS{trademark}) process, currently under development, has demonstrated the capability to produce near-net shape, fully dense metallic parts with reasonably complex geometrical features directly from a Computer-Aided Design (CAD) solid model. Using a highly localized laser beam, metal powders are used to produce very fine grain high strength structures. Results to date show that excellent mechanical properties can be achieved in alloys such as 316 stainless steel and Inconel 625. Significant increases in yield strength have been achieved with no loss in ductility. The current approach lends itself to produce components with a dimensional accuracy of {+-} 0.002 inches in the deposition plane and {+-} 0.015 inches in the growth direction. These results suggest that the LENS{trademark} process will provide a viable means for direct fabrication of metallic hardware.

Physical Description

11 p.

Notes

OSTI as DE97054401

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  • Other Information: PBD: Aug 1997

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  • Other: DE97054401
  • Report No.: SAND--97-8546
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/554822 | External Link
  • Office of Scientific & Technical Information Report Number: 554822
  • Archival Resource Key: ark:/67531/metadc692667

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 14, 2016, 2:08 p.m.

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Smugeresky, J.E.; Keicher, D.M.; Romero, J.A.; Griffith, M.L. & Harwell, L.D. Using the Laser Engineered Net Shaping (LENS{trademark}) process to produce complex components from a CAD solid model, report, August 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc692667/: accessed January 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.